adapter renaming to adapter_helper

lib/pleroma/http/adapter_helper/hackney.ex

@@ -0,0 +1,41 @@
+defmodule Pleroma.HTTP.AdapterHelper.Hackney do
+  @behaviour Pleroma.HTTP.AdapterHelper
+
+  @defaults [
+    connect_timeout: 10_000,
+    recv_timeout: 20_000,
+    follow_redirect: true,
+    force_redirect: true,
+    pool: :federation
+  ]
+
+  @spec options(keyword(), URI.t()) :: keyword()
+  def options(connection_opts \\ [], %URI{} = uri) do
+    proxy = Pleroma.Config.get([:http, :proxy_url], nil)
+
+    @defaults
+    |> Keyword.merge(Pleroma.Config.get([:http, :adapter], []))
+    |> Keyword.merge(connection_opts)
+    |> add_scheme_opts(uri)
+    |> Pleroma.HTTP.AdapterHelper.maybe_add_proxy(proxy)
+  end
+
+  defp add_scheme_opts(opts, %URI{scheme: "http"}), do: opts
+
+  defp add_scheme_opts(opts, %URI{scheme: "https", host: host}) do
+    ssl_opts = [
+      ssl_options: [
+        # Workaround for remote server certificate chain issues
+        partial_chain: &:hackney_connect.partial_chain/1,
+
+        # We don't support TLS v1.3 yet
+        versions: [:tlsv1, :"tlsv1.1", :"tlsv1.2"],
+        server_name_indication: to_charlist(host)
+      ]
+    ]
+
+    Keyword.merge(opts, ssl_opts)
+  end
+
+  def after_request(_), do: :ok
+end